ENHANCED DURABILITY PERFORMANCE OF LUBRICANTS USING FUNCTIONALIZED METAL PHOSPHATE NANOPLATELETS
First Claim
1. A method for improving wear protection in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil having a HTHS viscosity of less than 4.0 cP at 150°
- C., said formulated oil having a composition comprising a major amount of a lubricating oil base stock and a minor amount of metal phosphate nanoplatelets;
wherein said metal phosphate nanoplatelets are dispersed in said lubricating oil base stock sufficient for the formulated oil to pass wear protection requirements of one or more engine tests selected from TU3M, Sequence IIIG, Sequence IVA and OM646LA.
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Accused Products
Abstract
A method for improving wear protection in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil having a HTHS viscosity of less than 2.6 cP at 150° C. The formulated oil has a composition including a major amount of a lubricating oil base stock and a minor amount of metal phosphate nanoplatelets. The metal phosphate nanoplatelets are dispersed in the lubricating oil base stock sufficient for the formulated oil to pass wear protection requirements of one or more engine tests selected from TU3M, Sequence IIIG, Sequence IVA and OM646LA. Also provided are lubricating engine oil composition having improved wear protection.
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Citations
20 Claims
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1. A method for improving wear protection in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil having a HTHS viscosity of less than 4.0 cP at 150°
- C., said formulated oil having a composition comprising a major amount of a lubricating oil base stock and a minor amount of metal phosphate nanoplatelets;
wherein said metal phosphate nanoplatelets are dispersed in said lubricating oil base stock sufficient for the formulated oil to pass wear protection requirements of one or more engine tests selected from TU3M, Sequence IIIG, Sequence IVA and OM646LA. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- C., said formulated oil having a composition comprising a major amount of a lubricating oil base stock and a minor amount of metal phosphate nanoplatelets;
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10. A method of improving wear protection in an engine lubricated with a lubricating oil, said method comprising using as the lubricating oil a formulated oil comprising a lubricating oil base stock as a major component and metal phosphate nanoplatelets as a minor component;
- wherein said metal phosphate nanoplatelets are dispersed in said lubricating oil base stock; and
wherein wear protection is improved as compared to wear protection achieved using a lubricating oil containing a minor component other than said metal phosphate nanoplatelets.
- wherein said metal phosphate nanoplatelets are dispersed in said lubricating oil base stock; and
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11. A lubricating engine oil having a composition comprising a major amount of a lubricating oil base stock and a minor amount of metal phosphate nanoplatelets;
- wherein said lubricating engine oil has a HTHS viscosity of less than 2.6 cP at 150°
C.; and
wherein said metal phosphate nanoplatelets are dispersed in said lubricating oil base stock sufficient for the lubricating engine oil to pass wear protection requirements of one or more engine tests selected from TU3M, Sequence IIIG, Sequence IVA and OM646LA. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
- wherein said lubricating engine oil has a HTHS viscosity of less than 2.6 cP at 150°
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20. A lubricating engine oil having a composition comprising a lubricating oil base stock as a major component and metal phosphate nanoplatelets as a minor component;
- wherein said metal phosphate nanoplatelets are dispersed in said lubricating oil base stock sufficient for the lubricating engine oil to exhibit improved wear protection as compared to wear protection achieved using a lubricating oil containing a minor component other than said metal phosphate nanoplatelets.
Specification